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Function used for linear regression in R is __________

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Function used for linear regression in R is __________

(a) lm(formula, data)

(b) lr(formula, data)

(c) lrm(formula, data)

(d) regression.linear(formula, data)

The question was asked by my college professor while I was bunking the class.

My query is from Linear Regression in chapter Commands, Packages, Visualizing Data and Linear Regression of R Programming

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Right option is (a) lm(formula, data)

Easiest explanation: lm(formula, data) refers to a linear model in which formula is the object of the class “formula”, representing the relation between variables. Now this formula is on applied on the data to create a relationship model.

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